5-10. 針對不同的各別活動區域，雞隻必需有足夠的空間。前面課程已提到每隻雞的生活空間應至少有2200平方公分。但若為籠飼系統，則可在雞隻需求空間與可提供的空間上取得平衡。 For separate areas for different activities, chickens need sufficient space. As concluded yesterday the minimum area per bird should be 2.200 cm2. Existing husbandry systems are therefore always a compromise between what chicken needs and what the farmer can offer.